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US 7,611,228 B2Granted
Mist ejection head and image forming apparatus comprising same
AssigneeFUJIFILM Corporation
InventorSho Onozawa
Life of this patent
Estimating the term…
Abstract
The mist ejection head includes: a nozzle which ejects liquid; a nozzle plate which has electrical conductivity and in which the nozzle is formed; a liquid chamber connected to the nozzle; an ultrasonic wave generating element which generates an ultrasonic wave applied to the liquid in a vicinity of the nozzle; and an electrode which is provided on a wall of the liquid chamber other than the nozzle plate, wherein an electric field applied between the nozzle plate and the electrode is controlled.
Claims20
A mist ejection head comprising:
- a nozzle which ejects liquid;
- a nozzle plate which has electrical conductivity and in which the nozzle is formed;
- a liquid chamber connected to the nozzle;
- an ultrasonic wave generating element which generates an ultrasonic wave applied to the liquid in a vicinity of the nozzle;
- and
- an electrode which is provided on a wall of the liquid chamber other than the nozzle plate,
- wherein an electric field applied between the nozzle plate and the electrode is controlled.
4 more elements
A mist ejection head comprising:
- a nozzle which ejects liquid;
- a nozzle plate which has electrical conductivity and in which the nozzle is formed;
- a liquid chamber connected to the nozzle;
- an ultrasonic wave generating element which generates an ultrasonic wave applied to the liquid in a vicinity of the nozzle;
- and
- an electrode which is provided on a wall of the liquid chamber across the liquid in the liquid chamber from the nozzle plate,
- wherein an electric field applied between the nozzle plate and the electrode is controlled.
4 more elements
A mist ejection head comprising:
- a nozzle which ejects liquid;
- a nozzle plate which has electrical conductivity and in which the nozzle is formed;
- a liquid chamber connected to the nozzle;
- an ultrasonic wave generating element which is disposed on a lateral wall of the liquid chamber that makes contact with the nozzle plate and which generates an ultrasonic wave applied to the liquid in the liquid chamber;
- a reflector which has electrical conductivity and has a reflecting surface which reflects the ultrasonic wave transmitted toward a center of the liquid chamber from the ultrasonic wave generating element so as to concentrate the ultrasonic wave at a focal point located in a vicinity of the nozzle,
- wherein an electric field applied between the nozzle plate and the reflector is controlled.
3 more elements
Dependencies are inferred from the claim text.